Technical Data:
Series: 148
Product type: Micrometer Head, Small Standard Type
Measuring face material: Alloy tool steel
Measuring-face hardness: 60 HRC or more
Measuring face: Lapped
Finish: Satin-chrome plated
Measuring range: 0 - 13 mm
Graduation: 0.01 mm
Accuracy: +/-2 um
Stem diameter: 9.5 mm
Stem: Plain
Spindle end: Spherical SR4
Graduation features: Standard
Spindle lock: Yes
Spindle pitch: 0.5 mm

Dimensions:
Plain stem with spindle lock:
Spindle Dia.=5 mm
Stem Dia.=9.5 mm, tolerance 0/-0.009 mm
Spindle-lock Dia.=15 mm
Body Dia.=13 mm
Reference dimensions=9.5 mm, 14 mm, 27 mm and 40.1 mm
Retracted overall reference dimension=53.1 mm
Set screw
Mass=40 g